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Q. What is compound?
A compound is a substance which consists of two or more elements chemically combined. The elements in a compound aren't simply mingled together as they are in a mixture. In its place they are combined in a way such that the compound has properties that are different from those of the elements of which it is composed. Every compound is represented by a formula a combination of the symbols of the elements that make up the compounds. You may already recognize some chemical formulas such as H2O for water, NaCl for table salt and NH3 for ammonia.
group 14 reaction with oxygen
What is the foundation of classification of cold and hot working? Cold and hot working: Changing the shape of material by extrusion, forging, rolling, drawing involves pl
How to find the equivalent weight of a compound?
Q. Importance of Moisture content of the flour? Moisture content of the flour is an important parameter and does not remain the same throughout the period of storage. As the fo
How we get 49 gm = 1 eqv
Q. Define about Crystal Field Theory? This theory is based on two main assumptions. First, all the ligands are considered as point (negative) charges. It means that the size an
Rutherford's α particle scattering experiment proved that atom has: (1) Electrons (2 )Neutron (3) Nucleus (4 )Orbitals Ans: Nucleus
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Solution) There is a formula for this i.e [ (n 2 - n 1
Explain Bulking of sand The presence of moisture content to particular extent in sand increases the volume of sand. This is due to the fact that the moisture causes ?lm of wate
Determine the purpose of Quenching Quenching is most generally used to harden steel by introducing martensite, in which case steel should be rapidly cooled through its eutect
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